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# Copyright 2015 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
from devil.android import device_blacklist
from devil.android import device_errors
from devil.android import device_utils
def GetDevices(requested_devices, blacklist_file):
if not isinstance(blacklist_file, device_blacklist.Blacklist):
blacklist_file = (device_blacklist.Blacklist(blacklist_file)
if blacklist_file
else None)
devices = device_utils.DeviceUtils.HealthyDevices(blacklist_file)
if not devices:
raise device_errors.NoDevicesError()
elif requested_devices:
requested = set(requested_devices)
available = set(str(d) for d in devices)
missing = requested.difference(available)
if missing:
raise device_errors.DeviceUnreachableError(next(iter(missing)))
return sorted(device_utils.DeviceUtils(d)
for d in available.intersection(requested))
else:
return devices
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